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Finding the Fourth Proportional to 169,778,229.20, 254,289,430.20 and 147,103,413.20

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Solution

The fourth proportional to 169,778,229.20, 254,289,430.20 and 147,103,413.20 is: 220,327,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,778,229.20 : 254,289,430.20 = 147,103,413.20 : x
  2. Step 2: Convert to fraction form
    169,778,229.20/254,289,430.20 = 147,103,413.20/x
  3. Step 3: Cross multiply
    169,778,229.20x = 254,289,430.20 × 147,103,413.20
  4. Step 4: Simplify right side
    169,778,229.20x = 37,406,843,123,103,152
  5. Step 5: Solve for x
    x = 37,406,843,123,103,152/169,778,229.20
  6. Step 6: Final answer
    x = 220,327,678.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.